Home / 490,946.40-677,456.88-276,052.32

Finding the Fourth Proportional to 490,946.40, 677,456.88 and 276,052.32

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Solution

The fourth proportional to 490,946.40, 677,456.88 and 276,052.32 is: 380,924.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,946.40 : 677,456.88 = 276,052.32 : x
  2. Step 2: Convert to fraction form
    490,946.40/677,456.88 = 276,052.32/x
  3. Step 3: Cross multiply
    490,946.40x = 677,456.88 × 276,052.32
  4. Step 4: Simplify right side
    490,946.40x = 187,013,543,423.96
  5. Step 5: Solve for x
    x = 187,013,543,423.96/490,946.40
  6. Step 6: Final answer
    x = 380,924.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.